답변글에 답변을 달면, Option값이 자동으로 변경되게 하려고 합니다.

//write.skin.php<?$body_mode = "pop";if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가if ($is_dhtml_editor) {    include_once("$g4[path]/lib/cheditor4.lib.php");    echo "<script src='$g4[cheditor4_path]/cheditor.js'></script>";    echo cheditor1('wr_content', '100%', '250');}$updatetime=date('Y-m-d H:i:s');?><script language='Javascript' src='<?=$board_skin_path?>/sms.js'></script>        <form name="fwrite" method="post" onsubmit="return fwrite_submit(this);" enctype="multipart/form-data" target='hiddenframe'>        <input type=hidden name=null>         <input type=hidden name=w        value="<?=$w?>">        <input type=hidden name=bo_table value="<?=$bo_table?>">        <input type=hidden name=wr_id    value="<?=$wr_id?>">        <input type=hidden name=sca      value="<?=$sca?>">        <input type=hidden name=sfl      value="<?=$sfl?>">        <input type=hidden name=stx      value="<?=$stx?>">        <input type=hidden name=spt      value="<?=$spt?>">        <input type=hidden name=sst      value="<?=$sst?>">        <input type=hidden name=sod      value="<?=$sod?>">        <input type=hidden name=page     value="<?=$page?>">        <input type=hidden name=secret     value="secret">        <input type=hidden name=wr_1     value="<?=$write[wr_1]?>">        <input type=hidden name=wr_4     value="<?=$write[wr_4]?>">    <div style='float:left;width:300px;'>        <table width="100%" border="0" cellspacing="0" cellpadding="0" class=brd_col>            <colgroup width=80 />            <colgroup width='' />            <? if ($is_name) { ?>            <tr>                <td class=brd_col1><img src='/images/bbs/field_name.gif'></td>                <td class=brd_col2><input class='box01' maxlength=20 size=15 name=wr_name itemname="이름" required value="<?=$name?>"></td>            </tr>            <? } ?>            <? if ($is_category) { ?>            <tr>                <td class=brd_col1>상태</td>                <td class=brd_col2><select name=ca_name required itemname="분류"><option value="">선택하세요<?=$category_option?></select></td>            </tr>            <? } ?>            <tr style='display:none;'>                <td class=brd_col1>나이</td>                <td class=brd_col2><input class='box01' style="width:100%;" name=wr_1 id="wr_1" itemname="나이" required value="<?=$write[wr_1]?>"></td>            </tr>            <tr style='display:;'>                <td class=brd_col1>핸드폰번호</td>                <td class=brd_col2><input class='box01' style="width:100%;" name=wr_subject id="wr_subject" itemname="핸드폰번호" required value="<?=$subject?>" readonly></td>            </tr>            <tr style='display:;'>                <td class=brd_col1>질문내용</td>                <td class=brd_col2>                    <div style='float:left;' class='box01'><textarea style='float:left;margin:10px;width:93px;height:93px;background-color:transparent;overflow:hidden;border:none;' name=wr_content id="wr_content" itemname="제목" required readonly><?=$content?></textarea></div>                </td>            </tr>        </table>    </div>    <div style='float:left;width:150px;margin-left:15px;'>        <div style="margin:auto; width:140px; background-color:#F8F8F8; border:1px solid #ccc; text-align:center; margin-bottom:5px;">            <div style="margin:auto; background-image:url('/admin/sms_admin/img/smsbg.gif'); width:120px; height:120px; margin-top:8px;text-align:center;">                <textarea id="wr_10" name="wr_10"  style="font-family:굴림체; color:#000; line-height:110%;margin:auto; margin-top:20px; overflow: hidden; width:116px; height:88px; font-size: 9pt; border:0; background-color:transparent;" cols="16" itemname="답변"  class='lcd' <? if(!$write[wr_10]){?>onclick='NSMS_doClear(this)' onselect='NSMS_doClear(this)' onkeyup='NSMS_calByte(this)'<?}else{?>readonly<?}?>             <? if ($write_min || $write_max) { ?>onkeyup="check_byte('wr_10', 'char_count');"<?}?>><?=$write[wr_10]?></textarea>                    </div>            <div style="text-align:center; margin:5px 0 5px 0;"><span id=msgByte>0</span> / 80 byte</div>        </div>        <div style='float:left;width:145px;clear:both;'>            <div>                <b>회신번호</b>                <input type=text name=wr_9 id=wr_9 required itemname='회신번호' style="width:90px;" maxlength=20 value="<?=$config[cf_1]?>" class='box02' readonly>                <input type=text name=wr_8 id=wr_8 value="<?=$updatetime?>">            </div>            <? if(!$write[wr_10]){?>            <div style="text-align:center; margin-top:5px;">                <input type=submit id="btn_submit" class=btn1 tabindex=6 value='  전 송 하 기  ' style="width:100%; height:30px;" accesskey='s' align='absmiddle'>            </div>            <?}?>        </div>        <div class='board_button'>            <input type=submit id="btn_submit" class=btn1 value='답변완료' accesskey='s' align='absmiddle'style="width:70px; height:30px;">&nbsp;            <input type=button class=btn1 value='목록으로' align='absmiddle'style="width:70px; height:30px;" onClick='location.href="./board.php?bo_table=<?=$bo_table?>";'>&nbsp;        </div>    </div></form><script type="text/javascript"><?// 관리자라면 분류 선택에 '공지' 옵션을 추가함if ($is_admin) {    echo "    if (typeof(document.fwrite.ca_name) != 'undefined')    {        document.fwrite.ca_name.options.length += 1;        document.fwrite.ca_name.options[document.fwrite.ca_name.options.length-1].value = '공지';        document.fwrite.ca_name.options[document.fwrite.ca_name.options.length-1].text = '공지';    }";} ?>with (document.fwrite) {    if (typeof(wr_name) != "undefined")        wr_name.focus();    else if (typeof(wr_subject) != "undefined")        wr_subject.focus();    if (typeof(ca_name) != "undefined")        if (w.value == "u")            ca_name.value = "<?=$write[ca_name]?>";}function fwrite_submit(f) {    if (document.getElementById('tx_wr_content')) {        if (!ed_wr_content.outputBodyText()) {             alert('내용을 입력하십시오.');             ed_wr_content.returnFalse();            return false;        }    }        var subject = "";    var content = "";    $.ajax({        url: "<?=$board_skin_path?>/ajax.filter.php",        type: "POST",        data: {            "subject": f.wr_subject.value,            "content": f.wr_content.value        },        dataType: "json",        async: false,        cache: false,        success: function(data, textStatus) {            subject = data.subject;            content = data.content;        }    });    document.getElementById('btn_submit').disabled = true;    //document.getElementById('btn_list').disabled = true;        f.ca_name.value = "답변완료";        <?    if ($g4[https_url])        echo "f.action = '$g4[https_url]/$g4[bbs]/write_update.php';";    else        echo "f.action = './write_update.php';";    ?>    return true;}</script><script language="JavaScript" src="<?="$g4[path]/js/board.js"?>"></script><script language="JavaScript"> window.onload=function() { drawFont(); } </script>

//write_update.skin.php$sql = " update $write_table set ca_name = '답변완료'                    $sql_password                      where wr_id = '$wr[wr_id]' ";     sql_query($sql);    alert("답변이 완료되었습니다." /*. $qstr*/);